import java.util.Scanner;

abstract class ADetect {
    public abstract boolean detect(double sample);
}

class TPDetect extends ADetect {
    final double MINTP = 36.0; // 正常体温下限
    final double MAXTP = 37.5; // 正常体温上限

    public boolean detect(double tp) {
        return tp >= MINTP && tp <= MAXTP;
    }
}

public class TC2 {
    public static void main(String[] args) {
        TPDetect tpd = new TPDetect();
        Scanner in = new Scanner(System.in);
        System.out.print("请输入体温：");
        double temp = in.nextDouble();
        boolean b = tpd.detect(temp);
        if (b) {
            System.out.println("体温正常");
        } else {
            System.out.println("体温异常");
        }
    }
}